A federal court ruled Thursday that President Donald Trump's 10% global tariff on most U.S. imports is illegal [1], [2].
The decision limits the executive branch's power to unilaterally impose broad trade taxes without the express permission of Congress. This ruling creates a significant legal hurdle for the administration's current trade strategy and may impact the cost of imported goods.
The U.S. Court of International Trade issued the ruling on May 7, 2026 [2]. A panel of federal judges determined that the tariff violated existing law because the administration did not obtain the required authorization from Congress [1], [3].
Under the U.S. legal framework, the power to levy taxes and tariffs primarily resides with the legislative branch. The court found that the 10% [1] measure exceeded the president's authority to act independently on trade matters.
The ruling comes after a series of legal challenges regarding the legality of the global import tax. Because the measure was applied to most imports, the court's decision affects a wide array of international trade agreements, and commercial sectors.
The administration had implemented the 10% [1] tariff as a centerpiece of its economic policy. However, the federal trade court said that the lack of congressional approval rendered the policy unenforceable under current statutes [1], [3].
“A federal court ruled Thursday that President Donald Trump's 10% global tariff on most U.S. imports is illegal.”
This ruling reinforces the constitutional separation of powers by affirming that the president cannot bypass Congress to implement sweeping tax measures. It signals a potential shift in U.S. trade policy, as the administration must now either seek legislative approval or find different legal justifications to maintain import tariffs.
